TranslatableInterface.php

<?php

namespace Drupal\Core\Entity;

use Drupal\Core\TypedData\TranslatableInterface as TranslatableDataInterface;

/**
 * Provides methods for an entity to support translation.
 *
 * @ingroup entity_type_characteristics
 */
interface TranslatableInterface extends TranslatableDataInterface, EntityInterface {
    
    /**
     * Determines if the current translation of the entity has unsaved changes.
     *
     * @return bool
     *   TRUE if the current translation of the entity has changes.
     */
    public function hasTranslationChanges();

}